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Finding the Fourth Proportional to 222,012.68, 306,372.93 and 121,410.68

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Solution

The fourth proportional to 222,012.68, 306,372.93 and 121,410.68 is: 167,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,012.68 : 306,372.93 = 121,410.68 : x
  2. Step 2: Convert to fraction form
    222,012.68/306,372.93 = 121,410.68/x
  3. Step 3: Cross multiply
    222,012.68x = 306,372.93 × 121,410.68
  4. Step 4: Simplify right side
    222,012.68x = 37,196,945,764.89
  5. Step 5: Solve for x
    x = 37,196,945,764.89/222,012.68
  6. Step 6: Final answer
    x = 167,544.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.